Quartz Furnace Tube
Oversized Quartz Tube
Quartz Boat
Quartz Plate
Quartz Lamp Holder
Quartz Rod
Quartz Ring
Customized Quartz Products
Plasma-Fused Quartz Ingots
Quartz Irregular Shaped Sheets
Quartz Crystal Singing Pyramid
Half-white Coated Short-wave Infrared Quartz Heating Lamp
Southeast Quartz
Lianyungang Southeast Quartz Products Co., Ltd., established in 2015, is located in Donghai County, Lianyungang City, Jiangsu Province—a national base for silicon material industry. As a professional manufacturer integrating R&D, design, production, sales and import & export trade, the company relies on the superior high-quality quartz ore resources in Donghai County, deeply engages in the deep processing of quartz glass, and has become a core supplier of quartz consumables for photovoltaic, semiconductor, laboratory, chemical, lighting and other industries with mature production technology, strict quality control system and complete customized services.
The company has standardized production workshops, advanced quartz processing equipment and a professional R&D team, with full-process production capacity from quartz raw material processing to finished product manufacturing. It can produce a full range of quartz products, including high-purity fused quartz tubes, quartz furnace tubes, quartz bell jars, quartz boats, quartz lamp holders, quartz crucibles, quartz instruments (beakers, condensers, distillers, etc.), and tri-acid purification equipment. All products are made of high-purity fused quartz raw materials, featuring excellent high-temperature resistance (up to 1200℃), thermal shock resistance, corrosion resistance, high light transmittance and good electrical insulation performance, which can meet the demanding working conditions such as vacuum environment, high-temperature sintering, atmosphere control and precision experiments.
High-Purity Fused Quartz Plates Technical Specifications
We supply premium optical-grade and industrial-grade quartz plates engineered to withstand extreme thermal, chemical, and physical environments.
Unmatched Thermal Stability
Capable of continuous operation at 1100°C and short-term exposure up to 1200°C. Virtually zero thermal expansion coefficient prevents cracking under rapid cooling.
High Chemical Purity
Manufactured from ultra-pure silicon dioxide (SiO2 > 99.99%). Minimal trace metal impurities ensure zero contamination in semiconductor wafer processing.
Excellent Optical Clarity
High light transmittance across UV, visible, and infrared spectrums. Perfect for optical windows, laser technology, and specialized sight glasses.
| Property / Characteristic | Typical Values | Application Significance |
|---|---|---|
| Chemical Purity (SiO2) | > 99.99% | Prevents contamination in semiconductor and high-vacuum processes. |
| Continuous Working Temperature | 1100°C | Ideal for high-temperature furnace windows and combustion tubes. |
| Max Short-term Temperature | 1200°C | Withstands extreme thermal shock and rapid thermal processing (RTP). |
| Coefficient of Thermal Expansion | 5.5 × 10^-7 / °C | Provides outstanding dimensional stability under sudden temperature shifts. |
| Optical Transmittance (Visible) | > 92% | Ensures high clarity for optical instruments and laser-based sensors. |
| Acid Resistance | Extremely High (Except HF) | Resists corrosion from strong acids in laboratory and chemical plants. |
Featured Quartz Products Showcase
Explore our high-performance quartz products engineered for semiconductor fabrication, laboratory testing, and industrial thermal processes.
Fused Silica Quartz Plate – Heat Resistant
High-purity flat quartz plates with superior flatness and optical polish, designed for high-temperature viewing windows and semiconductor substrates.
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Introduction to Plasma-Fused Quartz Ingots
Ultra-pure raw material base for custom fabrication. Excellent homogeneity and low bubble content for optical and semiconductor components.
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Oversized Fused Quartz Tube for High Temp Applications
Large-diameter quartz tubes designed for industrial processing, chemical vapor deposition (CVD), and diffusion furnace chambers.
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Custom Size Quartz Furnace Tube for Laboratory & Industrial Use
Tailored dimensions for precise laboratory experiments and industrial sintering. High resistance to thermal shock and gas corrosion.
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Premium Quartz Boat for High Temperature Processes
High-precision quartz boats for wafer carrier applications in diffusion and oxidation chambers, ensuring maximum thermal efficiency.
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Custom Transparent Quartz Glass Ring Insulation Ring
High-temperature insulation rings engineered for heat shields, plasma etchers, and electrical isolation in semiconductor systems.
View Product DetailsIndustries Applied by Quartz Plates
High-purity fused quartz plates are crucial components in modern technology sectors due to their unique combination of properties.
Semiconductor
Used as wafer carriers, masking substrates, and chamber windows in CVD, PVD, and etching systems where high purity and thermal resilience are non-negotiable.
Photovoltaic Solar
Acts as critical support structures, quartz boats, and furnace components during high-temperature silicon wafer doping and processing.
R&D Laboratories
Serves as high-temperature reaction windows, acid digestion containers, microfluidic chips, and specialized optical windows for precise analytical instruments.
Chemical & Optical
Utilized in harsh chemical environments as sight glasses, acid purification chambers, and high-power laser windows requiring low optical dispersion.
Advanced Manufacturing & Processing
Our state-of-the-art facility utilizes advanced grinding, cutting, CNC machining, and polishing equipment to guarantee precise tolerances and high surface quality.
Our Factory & Facility Display
Standardized production workshops, advanced quartz processing equipment, and rigorous QA areas located in Donghai County, Lianyungang City.
Global Quartz Excellence & Trusted Quality
Our business philosophy is built on absolute precision, strict quality control, and dedicated customer custom services.
Customer Supreme
Adhering to the philosophy of "Quality First, Customer Supreme, Innovation-Driven, Integrity Management", the company has established a complete quality inspection system.
Quality Control
All products undergo multiple tests such as helium mass spectrometry leak detection, pressure resistance test and purity test before leaving the factory to ensure stable performance, no impurities and no leakage.
Customized Services
Meanwhile, the company provides flexible customized services, and can customize product sizes, structures and specifications according to customers' equipment parameters and process requirements, quickly responding to personalized orders.
Trusted by Customers Worldwide
Quality • Service • Global Presence
With reliable product quality, efficient delivery capacity and thoughtful after-sales service, the products of Lianyungang Southeast Quartz Products Co., Ltd. not only cover all provinces and cities in China, but also are exported to many countries and regions in Europe, America, Southeast Asia, the Middle East, etc., winning wide recognition and trust from customers at home and abroad.
Innovation and Research: In the future, the company will continue to deeply cultivate the field of quartz products, continuously improve technological innovation and production technology levels, and strive to provide global customers with higher-quality and more professional quartz product solutions, contributing to the high-quality development of high-end manufacturing and scientific research fields.
Certificate Display & Quality Guarantee
Our commitment to excellence is certified. We comply with major international quality and environmental standards including REACH, RoHS, and SGS.
Need Custom High-Purity Fused Quartz Plates?
Our engineering team is ready to analyze your drawings and custom requirements. Get a fast, competitive quote for optical-grade quartz windows, plates, and customized components.